Jump to content

Recommended Posts

Hi guys this happened to me twice to my GMC Acadia 2013 i am basically driving then there would be a sudden gear shift and check engine light would come on with StabiliTrak off ,Traction control warning light rear view camera off. I would slow down to complete stop car but then when i press gass paddle i would get nothing car would just barely role but rpm would go up. Then really slowly i would get the some power . On both times i would have to shut down the car then go to setting in dashboard and reset everything back on from TC, camera ect after shutting car off and resetting only check engine light would be there but after few hour of driving engine light would disappear this happens twice in past 3 months. Codes i am getting is P182E P0700 transmission control system MIL. When Google code it say TCM needs to be repaired but i hear its expensive since engine is involved.

 

Took it to a mechanic for a scan and this is the report they give me if you guys can take a look and give me some advice here should i trade in this car? how bad is this i men i have 3 kids in this car i really don't like what happens

Thanks guys much apriciated

IMG_3581.jpg

Share this post


Link to post
Share on other sites

That code is for the internal mode switch. We have changed a few of them and it is not an easy or cheap job. I would pull apart the transmission connector and examine all terminals for corrosion, backed out terminals, chafed or broken wires etc. I have seen that be the issue more times than an actual failure of the internal mode switch. If all looks good then get a good scan tool and watch that the IMS follows the ranges as you shift threw the gears.If not I'm afraid you will be going inside the trans for the repair.Good luck.

Share this post


Link to post
Share on other sites
5 hours ago, mjm-1957 said:

That code is for the internal mode switch. We have changed a few of them and it is not an easy or cheap job. I would pull apart the transmission connector and examine all terminals for corrosion, backed out terminals, chafed or broken wires etc. I have seen that be the issue more times than an actual failure of the internal mode switch. If all looks good then get a good scan tool and watch that the IMS follows the ranges as you shift threw the gears.If not I'm afraid you will be going inside the trans for the repair.Good luck.

Thanks you for the help quick question transmission connector where is it located under the car or top thank you again 

Share this post


Link to post
Share on other sites

Right in the front of the trans, rectangular connector with a bail type latching mechanism , easier to get to and see whats going on with it from the bottom. Has an orange connector position assurance tab  you have to pull out toward the drivers side first.

Share this post


Link to post
Share on other sites
1 hour ago, mjm-1957 said:

Right in the front of the trans, rectangular connector with a bail type latching mechanism , easier to get to and see whats going on with it from the bottom. Has an orange connector position assurance tab  you have to pull out toward the drivers side first.

Hi there it’s a transmission  connector it’s right in front and it’s blue I have attached a pic and when you guys replace the mode switch do  you take entire transmission out and is the mode switch located in front of the transmission I am asking I seen some people do it without taking the entire transmission out thanks again man 

CD601734-A79A-4856-B8D1-D1064E765153.jpeg

Share this post


Link to post
Share on other sites

Clean it with electrical contact cleaner, parts stores carry it, the trans stays in the car but the valve body, tcm and shift linkage have to come out. Not for the beginner. If it turns out to be the IMS I would recommend bringing it to a dealer or trans shop.

Share this post


Link to post
Share on other sites

Hi me again i need some advice since you have fixed this problem on few cars should i do this repair or trade in this car for Toyota sienna 2017 since you have experience what would you do thanks in my situation

 

I did clean  transmission connector. I took it off and clean it with electrical contact cleaner and you also mentioned to examine all terminals terminals are what? and what exactly are backed out terminals

 

Thanks you so much for your help man

 

 

Share this post


Link to post
Share on other sites

And can this problem be due to Throttle Body i did remove it and clean it compliantly

Share this post


Link to post
Share on other sites

If thats the only thing wrong with it then get it fixed and move on. Hard to get another vehicle for the cost of this repair. The terminals are the metal pins that you see in the connector body. If you dont know what I'm talking about your in over your head and time to bring it somewhere-trans shop, dealer.Good luck.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×

Important Information

By using this site, you agree to our Terms of Use.